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Q.
Find the missing number in the series 1, 6, ?, 15, 45, 66, 91
A.
24
B.
28
C.
32
D.
26
View Answer
Correct choice: B
Explanation:
Here the given series 1, 6, ?, 15, 45, 66, 91 follows a Pattern in the series is, +5, +9, +13,...,.. +21, +25 So +4 is getting increased at every term addition. Missing Number in the series will be 15+(9+4) = 15 + 13 = 28.
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